Bump typer from 0.3.1 to 0.3.2 (#161)

Bumps [typer](https://github.com/tiangolo/typer) from 0.3.1 to 0.3.2.
- [Release notes](https://github.com/tiangolo/typer/releases)
- [Changelog](https://github.com/tiangolo/typer/blob/master/docs/release-notes.md)
- [Commits](fastapi/typer@0.3.1...0.3.2)

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Author: dependabot-preview[bot]